<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>026-隐式转换.html</title>
</head>
<body>
	
</body>
<script>
	var a = undefined;

	// console.log(a - 1);
	// console.log(a * 1);
	console.log(a / 1);
	console.log(typeof (a / 1));

	// if("1" === 1){
		// console.log("yes");
	// }

	if(null == undefined){
		console.log("yes");
	}
</script>
</html>